/**
 * Generates a complete WGSL fragment shader from a CustomShaderDescriptor.
 *
 * The generated code includes:
 * 1. Constants (PI, MAX_*_LIGHTS)
 * 2. CustomUniforms struct (from @property metadata, 16-byte aligned)
 * 3. Scene structs (DirLight, PointLight, SpotLight, SceneUniforms)
 * 4. Bind group 1 declarations (custom uniforms, scene uniforms, textures)
 * 5. Shadow code (group 2)
 * 6. PBR helper functions (available but not required)
 * 7. FragmentInput struct
 * 8. User's fragment code
 */
import type { CustomShaderDescriptor } from './custom-shader-parser.js';
export declare function generateCustomFragmentShader(descriptor: CustomShaderDescriptor): string;
/**
 * Generates a custom vertex shader with user's displaceVertex function.
 * Layout: group 0 = ObjectUniforms, group 1 binding 0 = CustomUniforms, group 1 binding 1 = SceneUniforms.
 */
export declare function generateCustomVertexShader(descriptor: CustomShaderDescriptor): string;
/**
 * Generates a shadow vertex shader for custom vertex displacement.
 * Layout: group 0 = ObjectUniforms, group 1 = lightVP, group 2 = scene + custom uniforms.
 */
export declare function generateCustomShadowVertexShader(descriptor: CustomShaderDescriptor): string;
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